Cam Key Degree / Width Calculator

Wallace Racing BACK to Calculators

I'd like to thank Jim Hand for the basics of this calculator!

A quick method of determining the offset amount of a cam key is to physically measure it.
(the small key used in the cam keyway to align the timing gear)
With the measured width you can determine what the degree of the offset key is or should be.

If you don't know what degree your offset key is, measure the width of it, then use the top calculator to see what the degree offset is for that width.

With the bottom calculator, you can see what the width of your degree key should be.
I.E. If you think you have a 2° key, input "2" in the calculator and it will give you the width.
The key width should measure that number.

If not use that measurment in the top calculator to see what the degree offset is.

An FYI: Most of the advance keys are marked as being for the crank. (like for Mopar)
These will actually be double the marked degrees when used in the cam keyway!

Measure width between the red lines

These calcs are in camshaft degrees

These calcs are in camshaft degrees

These calcs are in crankshaft degrees

These calcs are in crankshaft degrees